圖標

pitcher

Change the key of any song, keep the tempo. Tuner, loops, speed. Offline.
新版本 2.6.6
- Share or save a whole song as one .pitcher file from Library: the original
audio plus every pitch, loop, and bookmark with its name. Opening it in
pitcher adds the song to the library.
- Removed the network state permission the media library pulled in.
- The support links moved to the bottom of Settings.
pitcher changes the key of any song while the tempo stays exactly the same. Move
music up or down by anything from a full octave to a single cent, find the key
with the built-in tuner, practice with loops and slower speeds, and save the
version you need as a file.

Made for singers who want a song in their range, players who need to match a
recording or an instrument, and anyone learning a piece by ear.

Change the pitch
- Slide up or down on the screen and hear the change as the song plays.
- Step by 1, 10, or 100 cents, type an exact value, or snap to semitones.
- The interval is spelled out as you go, for example "up a minor third".

Find the key
- The tuner names the note at the playhead or at a bookmark, with its exact cents.
- Choose the note you want and apply the interval in one tap.

Practice
- Loops for the passages you work on, repeated one at a time or in sequence.
- Named bookmarks shown on the waveform.
- Play speed from half to double, without changing the pitch.
- Zoom the waveform, and let it follow the playhead.

Keep and save
- Keep the pitches you like on a shelf and switch between them with a tap.
- Kept pitches are prepared in the background, so saving is quick.
- Save or share as WAV, MP3, M4A, or Opus, the whole song or only your loops, at
normal speed or at your practice speed.
- Files sound exactly like the preview, because both use the same engine.

Private by design
- No network permission. Nothing leaves your phone.
- No account, no ads, no tracking.
- Import audio or video files, or share one in from another app.

A short guided tour shows every control the first time you open a song.

pitcher is free and open source software (GPL-3.0).

版本

雖然在下方可選擇下載 APK 檔案,但要留意這樣的安裝方式將不會收到更新通知,是一種較不安全的下載方法。建議您先安裝 F-Droid 用戶端使用。

下載 F-Droid
  • 版本 2.6.6 (15) 建議 於 2026 年 10 月 29 日新增

    arm64-v8a armeabi-v7a x86 x86_64

    此版本需要 Android 10 或更高的版本。

    此套件包由原開發者建置和簽署,並保證與此原始碼 Tarball 保持一致。

    權限
    • 執行前景服務
      允許應用程式使用前景服務。
    • 搭配「mediaPlayback」類型執行前景服務
      允許應用程式搭配「mediaPlayback」類型使用前景服務
    • 顯示通知
      允許應用程式顯示通知
    • 防止手機休眠
      允許應用程式防止手機進入休眠狀態。
    • com.k1.pitcher.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    下載 APK 4.1 MiB PGP 簽章 | 建置紀錄

  • 新版本 2.6.5
    - Saved files at practice speed now match the preview.
    - The tuner's note fields no longer let the keyboard rewrite a note, and the
    library counts "1 song" instead of "1 songs".
    - Removed two unused permissions and ask for notifications on first playback.
  • 版本 2.6.5 (14) - 於 2026 年 10 月 16 日新增

    arm64-v8a armeabi-v7a x86 x86_64

    此版本需要 Android 10 或更高的版本。

    此套件包由原開發者建置和簽署,並保證與此原始碼 Tarball 保持一致。

    權限
    • 查看網路連線
      允許應用程式查看網路連線相關資訊,像是有哪些網路,以及有沒有連上。
    • 執行前景服務
      允許應用程式使用前景服務。
    • 搭配「mediaPlayback」類型執行前景服務
      允許應用程式搭配「mediaPlayback」類型使用前景服務
    • 顯示通知
      允許應用程式顯示通知
    • 防止手機休眠
      允許應用程式防止手機進入休眠狀態。
    • com.k1.pitcher.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    下載 APK 4.1 MiB PGP 簽章 | 建置紀錄